[FFmpeg-devel] [PATCH]lavc/motion_est: Fix undefined negative left shifts

[Carl Eugen Hoyos]

2017-04-18 16:28 GMT+02:00 Michael Niedermayer <michael at niedermayer.cc>:
> On Tue, Apr 18, 2017 at 11:04:34AM +0200, Carl Eugen Hoyos wrote:
>> Hi!
>>
>> Attached patch fixes the following ubsan errors:
>> libavcodec/motion_est.c:959:42: runtime error: left shift of negative
>> value -16
>> libavcodec/motion_est.c:960:42: runtime error: left shift of negative
>> value -16
>>
>> I do not have a testcase for lines 961f.
>>
>> Please comment, Carl Eugen
>
>>  motion_est.c |    8 ++++----
>>  1 file changed, 4 insertions(+), 4 deletions(-)
>> 835e20f48e7c0b1df3bdba09f3723e21a4cfd155  0001-lavc-motion_est-Fix-undefined-negative-left-shifts.patch
>> From 4dd1b8d61c5dd2e77b7c855a1d2acf7d90277daf Mon Sep 17 00:00:00 2001
>> From: Carl Eugen Hoyos <cehoyos at ag.or.at>
>> Date: Tue, 18 Apr 2017 11:02:30 +0200
>> Subject: [PATCH] lavc/motion_est: Fix undefined negative left shifts.
>
> LGTM

Patch applied.

Thank you, Carl Eugen